If the TV is stuck at the boot screen but the hardware processor still responds to power cycles, use the automated USB installation process. Requirements
Do not disconnect the power or remove the USB drive under any circumstances while the upgrade process is active. A power interruption during this phase will corrupt the flash memory and brick the motherboard. Phase 3: Post-Update Optimization tpsk506spb802 firmware download extra quality
Insert a reliable USB flash drive (8GB to 32GB maximum) into your computer. If the TV is stuck at the boot